An asteroid that fell to Earth and exploded above Canada in 2022 was only around 20 inches wide — the smallest space rock ...

"The fact that terrestrial microbes are the Earth's best colonizers means we can never completely discount terrestrial ...

WB—is estimated to be between 240 and 525 feet across and will pass us at about twice the distance between the Earth and moon ...

A recent discovery made by scientists working with a sample of rock from outer space highlights one of the huge challenges ...

Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But ...

Computer simulations suggest that Mars' puzzling moons, Phobos and Deimos, may have been formed from debris created when a ...

Preliminary research suggests asteroid 2024 PT5, which stuck around Earth for almost two months, has lunar origins ...

Earth is saying goodbye to an asteroid that has been a "mini-moon" of sorts since late September, when it joined the planet's ...

Last year, researchers excitedly announced that they had found two organic compounds essential for living organisms in ...

A chunk of rock collected from the asteroid Ryugu contains bacteria—but, unfortunately, it's not evidence of alien life.

NASA has identified an asteroid rich in valuable metals like gold and platinum. Named 16 Psyche, has enough resources to make ...

In How to Kill an Asteroid, Robin George Andrews looks at the successes and shortcomings of planetary defense.